Fountain pen



FOUNTAIN PEN Filed Dec. l0, 1937 INVENTOR. RHNSZKY BY Wway Y Afa. ATTORNEY.

t Patented July 2, i940 PATENT OFFICE.

FOUNTAIN PEN Paul Sat1-ansah', Vienna, Austria, assigner to W. A. Katzenstein, Jackson Heights, N. Y.

vApplication.December 10, 1937, Serial No. 179,183 In Austria April Z1, 1937 3 Claims. (Cl. 12o-49) My invention relates to fountain pens, and more particularly to a fountain pen for use by one hand, in which a cap housing is slidably and undetachably mounted on the end of the barrelr carrying the nib.

',In the hitherto known fountain pens of above described type, the cap housing is provided with a flap hinged thereto. When the cap housing is in the position enclosing the rib, the flap is closed,

l()A and when the cap housing has to beshifted into the position liberating the nib for use, the ap is opened. It has been found, however, that a perfect tightening between the flap and the cap housing is impossible, so that a drying up4 of the l5 nib occurs which prevents an immediate writinu when the fountainpen is used again.

One object of my invention is to provide a fountain pen of above described type, which is instantly ready for use when the cap housing is shifted into the position liberating the nib.

i Another object of my invention is to provide a fountain pen of above described type, which is perfectly sealed when the cap housing is in the position enclosing the nib.

`A further object of my inventionis to provide a fountain pen of above described type, whichl has a simple construction and may be easily manipulated.

1n order to carry out my invention into practice I provide a fountain pen comprising a barrel, a nib mounted on said barrel, a housing slidably and undetachably mounted on said end of the barrel, said housing having an opening for the passage of the nib, said housing enclosing said nib in its normal end position, said housing liberating said nib in its other end position for use of the fountain pen, an ink feeding device in said barrel, and actuating means for actuating said ink feeding device to force ink into the nib for priming same and to suck back a remainder of ink from the nib into the ink feeding device, said actuating means being arranged on tion enclosing the nib.

The above mentioned objects and advantages as well as other objects and advantages will be I more fully disclosed in the following specification reference being had to the accompanying ink when the housing is shifted into the posiwhich:

Fig. 1 is a side elevational view of a fountain pen with the cap housing in the position enclosing the nib, 5

Fig, 2 is a side elevational view ofthe fountain pen with the cap housing in the position liberating the nib, y

Fig. 3 is a top plan View of the fountain pen shown in Fig. 1,

Fig. 4 is a sectional view of the fountain pen taken on line 4-4 of Fig.,1, and

Fig. 5 is a fragmentary sectional view of a different embodiment of the fountain pen.

Referring now to Figs. 1-4, I indicates the bar- 15 rel of the fountain pen. The nib holder 2 carrying the nib 4 is secured to the barrel I in any suitable manner.y A collapsible ink sack E Var-l -ranged in said barrel I communicates with the nib 4 through a channel 3 in the nib holder 2. 20

A blade spring 6 adapted to cooperate with the ink sack 5 is also arranged in the barrel I. Said spring 6 carries a button 9 or the like extending through an opening II) of the wall of the barrel and projecting from the outside of the barrel. The lower end of the spring 6 abuts against a filling pin 1 movably arranged in a bore of a bushing 20 mounted in the lower end of the barrel I. A cap 8 enclosing the pin I is screwed onto the en d of the, barrel I. so

A cap housing I4 is vslidably and undetachabl mounted at the upper end of the barrel I by means of a pin and groove connection 2l, 22 or the like. The housing I4 has a slot I6, and said slot I6 is in engagement with the button 9 carried by the spring 6, when the housing I4 is in its a5 normal end position enclosing the nib 4. Furthermore,the housing has an opening I5 at its top for the passage of the nib4, when the housing is shifted into its other end position liberating the nib for use of the fountain pen as shown 40 in Fig; 2.

The operation of the fountain pen is as follows: When it is desired to make the fountain pen ready for use, the cap housing I4 is moved from its normal end position shown in Fig. 1 5 into its other end position shown in Fig. 2. During the rst portion of this movement the slot IB slides along the button 9 and the latter and the spring 6 remain in the position shown in full 5o lines in Fig. 4. During the second portion of. this movement, however, the button 9 projecting from the outside of the barrel I comes into the path of the body of the housing I4, as soon as the edge 23 of the slot I6 comes in contact with 55 the button 9. When the shifting of the housing I4 is continued after the contact between the edge 23 and the button 9, the button 9 is pressed -inwardly by the wall of the housing I4, so that the spring 6 is brought into the position 9' shown in dash lines in Fig. 4. Thus, the button 9i and spring 6 actuate the ink sack' 5 to force ink into the nib! through the channel 3 for priming the -nib liberated by the housing il, so that the fountain pen is immediately ready for use.` During the use of the fountain pen,Y the ink is fed from the ink-sack E to the nib 4 through the channel 3 in usual manner.

' When, after the use of the fountain pen., the housing I4 is moved from the position shown in Fig. '2 into the positiongshown in Fig. 1, the spring 6 carrying the button 9 returns into the position shown full lines in Fig. 4, as soon as the edge 23 is sengaged from the button 9.

During this return movement of th'e actuatingmeans 6, 9 the remainder of the ink is sucked backf'from the nib into the elastic ink feeding device 5, and this sucking back of the remainder of the ink is suiiicient for a drying up of the nib to such a degree, that no inl: may pass through the capillary ink channel t to the nib when the housing I9 is in the position enclosing the nib as shown in Figs. 1 and d.

It will be readily understood that the shifting of the housing it4 from` the position showifiy in Fig. 1 into the position shown in Fig. 2 and vice versa may be easily carried out by one hand.

When it is desired to rell the ink-sack El, the housing ld is shiftedinto the position shown in Fig. 2 and the cap t is crewed from the barrel i. The nib d is inserted into the ink in a bottle,

andthe lling pin 'l cooperating with the spring e is pressed and released several times, whereby the ink is sucked into the ink-sack t.

Fig. 5 illustrates a dierent embodiment of a.v

fountain pen. e barrel i does not contain a special ink-sach for the ink supply. The ink is filled directly into the ink supply chamber- 2S of the barrel i by means oi a piston li in a manner imo per se. e barrel i has a recess receiving an elastic sleeve i3 of rubber or the like. The button il is connected to this sleeve is. en the housing id is moved into the position liberatingthe nib d, the buttons is pressed inwardly by the housing, as soon as the edge 23 comes into contact with the button il, so that the wall of the sleeve i@ is depressed for priming the nib as shown in dash lines. On the other hand, when the housing id is moved from the position lib? eil-ating the nib into the position enclosing the nib, tite button d is returned into its projecting position by the elasticity of the sleeve i3 as aaoaeei fountain pen comprising a barreLa nib mounted on said barrel, a housing slidably and 1 undetachably mounted onsaid end of the barrel,

said housing having an opening for the passage of the nib, said housing enclosing said nib in its normal end position, said housing liberating said nib in its other end position for use of the fountain pen, an ink feeding device in said barrel, and

actuating means for actuating said ink feeding 'm device to force ink into the nib for priming same and to suck back a remainder of ink from the nib into the ink feeding device, said actuating means being arranged on said barrel in the path of said housing, said housing being adapted to operate said actuating means for priming the nib when the housing is shifted into the position liberating the nib, and said housing being adapted to operate said actuating means for sucking back the-remainder of ink when the housing is shifted into the position enclosing the remainder of ink from the nib into the ink-sack,

said button being-movably arranged in an opening of the wall of the barrel and projecting from the outside of the barrel into the path of said housing, said housing being adapted to operate said button for priming the nib when the housing is shifted into the position liberating the nib, and said housing being adapted to operate saidbutton for sucking back the remainder of ink when the housing is shifted into the position enclosing the nib.

3. A fountain pen `comprising a barrel, a nib mounted on said barrel, a housing slidably and undetachably mounted on said end of the barrel, said housing having an opening for the passage ofthe nib, said housing enclosing said nib in its normal end position, said housing liberating said nib in its other end position for use of the fountain pen, an ink supply chamber in said barrel, an elastic sleeve arranged in said ink supply chamber, and a button for actuating said elastic sleeve to force ink into the nib for priming same and to suck back a remainder of ink from the nib into the ink supply chamber, said button l 

